<template>
  <div class="app-container">
    <!--    导出按钮-->
    <div class="el-toolbar">
      <div class="el-toolbar-body" style="justify-content: flex-start;">
<!--        定义超链接，直接声明_blank打开新的标签页-->
        <a href="http://localhost:8082//admin/cmn/dict/exportData" target="_blank">
          <el-button type="text"><i class="fa fa-plus"/> 导出</el-button>
        </a>
      </div>
<!--      导入按钮-->
      <el-button type="text"@click="importData"><i class="fa fa-plus"/> 导入</el-button>
    </div>

    <el-table
      :data="list"
      style="width: 100%"
      row-key="id"
      border
      lazy
      :load="getChildrens"
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
      <el-table-column label="名称" width="230" align="left">
        <template slot-scope="scope">
          <span>{{ scope.row.name }}</span>
        </template>
      </el-table-column>

      <el-table-column label="编码" width="220">
        <template slot-scope="{row}">
          {{ row.dictCode }}
        </template>
      </el-table-column>
      <el-table-column label="值" width="230" align="left">
        <template slot-scope="scope">
          <span>{{ scope.row.value }}</span>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center">
        <template slot-scope="scope">
          <span>{{ scope.row.createTime }}</span>
        </template>
      </el-table-column>
    </el-table>

<!--    弹出层，默认隐藏 dialogImportVisible默认为false-->
    <el-dialog title="导入" :visible.sync="dialogImportVisible" width="480px">
      <el-form label-position="right" label-width="170px">

        <el-form-item label="文件">
          <el-upload
            :multiple="false"
            :on-success="onUploadSuccess"
            :action="'http://localhost:8082/admin/cmn/dict/importData'"
            class="upload-demo">
            <el-button size="small"type="primary">点击上传</el-button>
            <div slot="tip"class="el-upload__tip">只能上传xls文件（Excel)，且不超过500kb</div>
          </el-upload>
        </el-form-item>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogImportVisible = false">
          取消
        </el-button>
      </div>
    </el-dialog>

  </div>
</template>

<script>
  import dict from '@/api/dict'

  export default {
    data() {
      return {
        list: [],
        dialogImportVisible:false // 弹框默认不弹出
      }
    },
    created() {
      this.getDictList(1) // 查询全部数据
    },
    methods: {
      getDictList(id) {
        dict.dictList(id)
          .then(response => {
            this.list = response.data
          })
      },
      getChildrens(tree, treeNode, resolve) {
        dict.dictList(tree.id).then(response => {
          resolve(response.data)
        })
      },
      // 导出数据字典
      exportData() {
        // 直接调用后端接口
        window.location.href = 'http://localhost:8082/admin/cmn/dict/exportData'
      },
      importData(){
        this.dialogImportVisible = true
      },
      // 上传成功回调方法
      onUploadSuccess(){
        this.dialogImportVisible = false
        this.getDictList(1)
      }
    }
  }
</script>
